Hello readers,
I have a query, who wants to help?
So I've been to the grow-shop and picked up a copy of the latest Urban Garden Magazine. I'm smoking a joint and reading an article called 'A Mind Blowing Guide To Ventilation - Part Two'.
Without further ado:
Quote:
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Originally Posted by Urban Garden Magazine dot com
'... Blowing air into a carbon scrubber tends to give an even pressure across the entire internal surface, which leads to lowest average velocity through the filter and therefore best smell reduction. It seems that sucking will draw most of the air through the carbon that is closest to the outlet. This is because the pressure drop across the carbon is greatest where the scrubber meets the ducting. Due to the large momentum of air being thrown out of a duct when you blow in to it, a larger amount of pressure should be available at the far end and should balance out more evenly across the surface. This should result in a slower average speed through the filter material and better smell removal...'
*Page 16 Nov/Dec 2007 UrbanGardenMagazine 004
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What do the friendly readers of the forum make of this statement?
Does anyone use a carbon filter in a direction other than sucking?
I've added a lil diagram that explains what I THINK (edit) the author is on about. I'm wondering if my filter will actually be more effective in the other direction.
Actually, are carbon filters designed to be bi-directional?
thanks!